Belt loop



FIG. 1 is a top, front, left perspective view of a belt loop in accordance with my design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front elevational view thereof, with the rear elevational view being identical thereto;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a right side elevational view thereof.

The broken lines illustrated in the drawings form no part of the claimed design. 

The ornamental design for a belt loop, as shown and described. 